The infamous iPhone hacker Geohot comes back with a bang to release his latest exploit, Limera1n, an "unpatchable" jailbreak for iPhones and iPod Touches running iOS 4.1.

Developer's note:

limera1n, 6 months in the making
iPhone 3GS, iPod Touch 3G, iPad, iPhone 4, iPod Touch 4G
4.0-4.1 and beyond+++
limera1n is unpatchable
untethered thanks to jailbreakme star comex
released today to get chronicdev to do the right thing
brought to you by geohot
hacktivates
Mac coming soon
follow the instructions in the box, sadly limera1n isn't one click
that's the price of unpatchability
as usual, donations appreciated but not required
still in beta, pardon my ragged edges
AppleTV is technically supported, but theres no apps yet
zero pictures of my face

Changelog:

• Beta 4:
  • uninstall fixed, respring fixedish
• Beta 3:
  • fixed new bootrom 3GS
• Beta 2:
  • fixed kernel patching magic, rerun BETA2+ over BETA1
• Beta 1:
  • first release